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您的检索式：作者名="Yangfa Zeng"
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| 1 | Comparison of Anterior Segment Optical Coherence Tomography and Ultrasound Biomicroscopy for Iris Parameter Measurements in Patients with Primary Angle Closure Glaucoma显示文摘Purpose: To compare the repeatability and consistency of anterior segment optical coherence tomography (AS-OCT) and ultrasound biomicroscopy (UBM) in measuring iris parameters in patients with primary angle closure glaucoma. Methods: Twenty-two patients (38 eyes) with primary angle closure glaucoma,including 5 eyes with acute angle closure glaucoma,10 fellow eyes of acute angle closure glaucoma, and 23 eyes with chronic angle closure glaucoma, were recruited consecutively in our hospital. All subjects underwent anterior scanning by AS-OCT and UBM. Peripheral iris thickness (PIT) and iris curvature (IC) in the anterior segment image obtained by AS-OCT and UBM were measured twice. The reproducibility of these two scans was evaluated by the intraclass correlation coefficient (ICC). A paired t-test was used to compare the difference between the two scans and the 95% limits of agreement (LoA) were calculated. Results:The ICCs of PIT and IC measured by UBM were 0.892 and 0.936 respectively, while for AS-OCT these values were 0.629 and 0.859, respectively. UBM had a higher reproducibility in both PIT and IC measurements as compared with AS-OCT.Differences in PIT measurement between AS-OCT and UBM(P=0.331).were not statistically significant, the 95% LoA (-0.178~0.156) mm was 36.1~41.2% of the mean. The IC was 0.053 mm smaller when measured by UBM than by AS-OCT (P=0.017), with the 95% LoA (-0.100~0.206) mm, or 36.2~74.6% of the mean.Conclusion:UBM had a higher reproducibility in measuring iris parameters than AS-OCT. The consistency between AS- OCT and UBM in measuring iris parameters was low in primary angle closure glaucoma patients. (Eye Science 2013; 28:1-6) | Zhonghao Wang Di Chen Yangfa Zeng Yandong Wang Xuanwei Liang Xing Liu | 2013 | Eye Science2013，28，1： | 8 |
| 2 | Correlation between Lens Thickness and Central Anterior Chamber Depth显示文摘Purpose:.To investigate gender differences in lens thickness (LT) and central anterior chamber depth (ACD) in normal subjects,.and to assess age associated changes in these measures. Methods:.The anterior chamber depth (ACD), and lens thickness (LT), of 150 normal subjects (150 eyes) was measured by anterior segment optical coherence tomography (AS- OCT)..Gender differences were assessed by independent t-test,.and correlation analysis was used to examine the effect of age. Results:.The mean values of ACD and LT were 2.69±0.32 mm and 4.85±0.43 mm, respectively. Women had a significantly lower Mean ACD as compared to men (2.56±0.33 mm vs 2.85±0.29 mm; P﹤0.05). No statistically significant difference was found in LT between male and female subjects (P>0.05)..Correlation analysis findings suggest that LT increases with age (r=0.83,P﹤0.05), and that ACD decreases with age (r=-0.57,P﹤0.05). After controlling for LT, no significant correlation was observed between age and ACD (P>0.05). Conclusion:.The ACD of female subjects was,.on average, shallower than that of their male counterparts..Aging was associated with increasing LT,.and the observed narrowing of ACD with age,.might be partially mediated by the increasing LT. | Yangfa Zeng Xing Liu Tao Wang Yimin Zhong Jingjing Huang Mingguang He | 2012 | Eye Science2012，27，3： | 1 |
| 3 | Comparison of the Educational Effect upon Myopia Prevention and Treatment between Video Demonstration and Traditional Teaching显示文摘Purpose:.To compare the education effect of video demonstrations and conventional teaching on the prevention and control of myopia.Methods:.Eighty students were randomly divided into an experimental(n=40) and a control(n=40) group,.and each group was split into two classes of 40 students..The students in the experimental group attended classes mainly based on video demonstration and those in the control group received conventional teaching..All students then undertook a test and the examination scores were statistically compared between the two groups.Results:.The educational background,.age,.and gender did not differ between the two groups(all P >0.05). The experimental group had a mean test score of 8.25±1.45,.which was slightly lower than the mean of 8.58±1.11 in the control group,but the difference was not statistically significant(t=-1.589,P=0.114).Conclusion:.The educational effect of video demonstrations was almost identical to that of traditional teaching..In addition,.video classes reduced the training time and financial costs,.indicating that they deserve widespread application. | Yunkai Lu Yangfeng Guo Hongxing Diao Xiaosong Liang Jinhua Lu Yangfa Zeng | 2015 | Eye Science2015，30，2： | 0 |
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